<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" th:href="@{/layui/css/layui.css}">
</head>
<body>
    <form class="layui-form" action="" style="margin-top: 15px;">

        <div class="layui-form-item">
            <label class="layui-form-label">名称</label>
            <div class="layui-input-block">
                <input type="text" name="title" required  lay-verify="required" placeholder="请输入标题" autocomplete="off" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">内容</label>
            <div class="layui-input-block">
                <input type="text" name="title" required  lay-verify="required" placeholder="请输入标题" autocomplete="off" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">附件</label>
            <div class="layui-upload">
                <button type="button" class="layui-btn layui-btn-normal" id="testList">选择多文件</button>
                <button type="button" class="layui-btn" id="testListAction">开始上传</button>
                <div class="layui-upload-list">
                    <table class="layui-table">
                        <thead>
                        <tr><th>文件名</th>
                            <th>大小</th>
                            <th>状态</th>
                            <th>操作</th>
                        </tr></thead>
                        <tbody id="demoList"></tbody>
                    </table>
                </div>
            </div>
        </div>

    </form>
</body>

<script th:src="@{/layui/layui.js}"></script>
<script>
    layui.use(['form','upload','jquery'], function() {
        var form = layui.form;
        var upload = layui.upload;
        var $ = layui.jquery;

        var demoListView = $('#demoList')
            ,uploadListIns = upload.render({
            elem: '#testList'
            ,url: 'https://httpbin.org/post' //改成您自己的上传接口
            ,accept: 'file'
            ,multiple: true
            ,auto: false
            ,bindAction: '#testListAction'
            ,choose: function(obj){
                var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
                //读取本地文件
                obj.preview(function(index, file, result){
                    var tr = $(['<tr id="upload-'+ index +'">'
                        ,'<td>'+ file.name +'</td>'
                        ,'<td>'+ (file.size/1024).toFixed(1) +'kb</td>'
                        ,'<td>等待上传</td>'
                        ,'<td>'
                        ,'<button class="layui-btn layui-btn-xs demo-reload layui-hide">重传</button>'
                        ,'<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">删除</button>'
                        ,'</td>'
                        ,'</tr>'].join(''));

                    //单个重传
                    tr.find('.demo-reload').on('click', function(){
                        obj.upload(index, file);
                    });

                    //删除
                    tr.find('.demo-delete').on('click', function(){
                        delete files[index]; //删除对应的文件
                        tr.remove();
                        uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
                    });

                    demoListView.append(tr);
                });
            }
            ,done: function(res, index, upload){
                if(res.files.file){ //上传成功
                    var tr = demoListView.find('tr#upload-'+ index)
                        ,tds = tr.children();
                    tds.eq(2).html('<span style="color: #5FB878;">上传成功</span>');
                    tds.eq(3).html(''); //清空操作
                    return delete this.files[index]; //删除文件队列已经上传成功的文件
                }
                this.error(index, upload);
            }
            ,error: function(index, upload){
                var tr = demoListView.find('tr#upload-'+ index)
                    ,tds = tr.children();
                tds.eq(2).html('<span style="color: #FF5722;">上传失败</span>');
                tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //显示重传
            }
        });

    })
</script>
</html>